ICM7243 Intersil Corporation, ICM7243 Datasheet - Page 5

• Manufacturer Part Number: ICM7243
• Description: 8-character, Microprocessor-compatible, Led Display Decoder Driver
• Manufacturer: Intersil Corporation

Timing Waveforms
CHARACTERS
DISPLAY FULL
INTER-CHARACTER
SIGNALS
DRIVE
CLEAR
SEN
WR
BLANKING
INTERNAL
SIGNAL
CHAR 1
CHAR 2
CHAR 3
CHAR 4
CHAR 5
CHAR 6
CHAR 7
CHAR 8
5
FIGURE 3. DISPLAY CHARACTERS MULTIPLEX TIMING DIAGRAM
FIGURE 2. SEQUENTIAL ACCESS MODE TIMING (MODE = 1)
ADDRESS
~
WRITE
5µs
DATA
CS
CS
FIGURE 1. RANDOM ACCESS TIMING
t
T
CHAR
t
t
AS
SEN
VALID
~
1
300µs
ICM7243
ICM7243
t
AH
t
CS
CHAR
t
WPI
t
2
DS
VALID
t
WC
t
DH
t
t
T
WHP
CHAR
8
INTER-CHARACTER BLANKING
t
t
WPH
WDF
October 28, 2005
FN3162.3